gordon



4 Sheets-Sheet 1.

(No Model.)

T. GORDON.

LAMP.

Patented June v3, 1890.5

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4 Sheets-Sheet 2. T. GORDON.

LAMP

(No Model.)

Patented June 3 TME non ms varias co., PN Ho., wnnusrou n c 4sheets-sheet s'.

T.,GORDON.

(No Model.)

LAMP.

No. 429,441. Paten-ted June 3', 1890.

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l 4 Sheets-Sheet 4. T. GORDON.

LAMP

(No Model.)

Patented June 3, 1890.

@mimosas Q0 www UNITED STATES PATENT OFFICE. v

THOMAS GORDON, lOF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SIEMENSLUNGREN COMPANY, OE PENNSYLVANIA. Y

LAMP.

SPECIFICATION formingpart of Letters Patent No. 429,441, dated June 3,1890. Application filed February l, 1888- Serial No. 262,681. (Nomodel.)

To all whom it may concern:

Be it known that I, THOMAS GORDON, a citil zen ofthe United States,residing at Philadelphia, 1n the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inRegenerative Gas-Lamps; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enableothers 1o skilled in the art to which it appertains to make and use thesame.

My invention relates to that class of lamps known as invertedregenerative lamps, for certain forms of which Letters Patent of theUnited States were granted to me July 13, 1886, and November '29, 1887,and for which I have filed other applications for Letters Patent,serially numbered, respectively, 217,717, 249,511, and 261,912; and thenature ofthe zo present improvement consists in certain modifications inthe construction of lamps of this class, hereinafter described andclaimed, whereby the gas chamber and burner and other parts of the lampare so constructed 2 5 and arranged that they may be readily separatedand the parts thereof removed for cleaning and repairs, the centralregenerative chamber accurately secured in position, and the parts ofthe lamp which support the central regenerative chamber and also theouter air-deflector be free to expand or contract.

In the accompanying drawings, Figure 1 represents a vertical section ofa lamp on line C D ofrFig. 2. Fig; 2 is a horizontal section 3 5 throughline A9 B9 of Fig. 1. Fig. 3 is a vertical elevation and section on lineE E of Fig. 2, showing the means adopted for securing the several partsin place. Fig. 4 is atop view on the right of the center line, showing4o the arrangement of the gassinlets, anda bottom view to the left ofsaid line, showing the arrangement of screws for securing the outerair-deiector. Fig. 5 represents a detail View of the center flue. Fig. 6represents a section and plan of the spider for supporting the Referringto the drawings, the gas-burner A is cast of one piece of metal, havingrim projections B above and C below the center line of the ribs E. Theseribs E are drilled through longitudinally, forming passages for the gas.The spaces F between the tubes thus formed admit of the passage of airdownward to the outer surface of the flame.

The gas-chamber G is formed in two sections H and I, having lugs J caston their peo ripheries. (See Fig. These parts being ttecl to each otherand to the burner to form gas-tight joints, oner or more gas-inlet portsK are provided, and the gas-pipes may be connectedthereto in such manneras to form supports in suspending the lamp. To the lower surface ofsection I of the gas-chamber is iitted the globe-holder L, which issecured thereto by a hinge and latch to provide facilities for cleaningor replacing the globe and light- 7o ing the lamp. Section I of thegas-chamber has also cast upon its lower inner circumfer. ence andprojecting downward therefrom a rim M, to which is secured adeflector-plate N. This deflector-plate is provided with lugs O,projecting' upward, having smooth holes drilled horizontally throughthem. The screws P, which serve to support the deflector N, are securedin the rim M, and the ends of the screws are turned to lit smoothlyinthe holes 8o in lugs O. The deflector N is of somewhat smaller diameterthan the inner circumference of the rim M, thus leaving an annularspace, through which air may pass to the inner surface of the globe toprevent overheating, duc. Any difference in expansion which may existbetween the deflector N and other parts is thus provided for, and thelife of these parts is thereby lengthened.

Section H of the gas-chamber is provided 9o I with lugs Q at its uppersurface projecting inward, the object of which is to forma support forthe spider D. Said spider 'is con! structed with ledges R R upon itsinner circumference. Projecting downward from said ledges are fingers S,which also project inward and touch the center flue some distance belowits point of support. Above the'ledges R R, and upon the innercircumference of the collar D2 of the spider D, are projections T, roo

lower surface of the burner and surrounding the lower end thereof, servethe purpose of filtering the air-supply and causing it` to be deliveredto the flame evenly andin smooth currents, preventing Iiickering andunst-eadiness'in the light. They also serve to more thoroughly heat theair. The arms D of the spider D are fitted to the lugs Q of thegaschalnber, section H, in such a manner as to maintain the spider in aposition concentric with l[he other parts of the lamp, (see Figs. l and2,) while it is also free to expandand contract without injury to anypart of the apparatus. A collar D2 is cast upon the spider' D, to whichis attached the chimney X.

I prefer to construct the center flue R of one piece of refractorymaterialhaving lugs R2. These lugs are made of such size as to passreadily up through the openings 0c of the spider D. `lhe projections Tare so placed as to act as stops to prevent the center flue being passedtoo far up, and the pins or projections T are provided to preventaccidental displacement of the center flue. NV ith this arrangement itwill be impossible to remove the center flue without first having raisedit far enough for lugs R2 to pass over pins or projections T.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a regenerative lamp, the combination of a burner, a gas-chambersurrounding the burner, the lower part of which has a cylindricalprojection on its bottom to support a defiector, a deiiector-platesomewhat smaller in circumference than is the inner circumference of thesaid rim to allow an aunularpassage for the air between the deiieetorand the rim, as and for the purpose described.

2. In a regenerative gas-lamp, the combination of a burner, agas-chamber formed in two sections surrounding the burner, to the uppersection of which is secured a spider su pporting the centralregenerative chamber, having arms fitted upon said upper section, and acentral regenerative chamber depending from said spider and removabletherefrom, as and for the purposes described.

3. In a regenerative gas-lamp, the combination of a burner, agas-chamber formed in two sections surrounding the burner, to the uppersection of which is secured a spider supporting the central regenerativechamber,

having arms fitted upon said upper section, and a perforated cylinderdepending from the spider, as and for the purposes described.

fi. In a regenerative gas-lamp, the combination of a burner, agas-chamber formed in two sections surrounding the burner, to the uppersection of which is secured a spider supportingthe central regenerativechamber, having arms fitted upon said upper section, a centralregenerative chamber depending from said spider and removable therefrom,and a perforated cylinder depending from the spider, as and for thepurposes described.

5. In regenerative lamps, the combination of a burner, a gas-chamberprovided with lugs Q to form a support for a spider, and a spidersupporting the central regenerative chamber, having slotted arms D,which iit upon the lugs Q and travel thereon when the parts are expandedor contracted, as and for the purposes described.

G. A spider constructed with ledges R R upon its inner circumference,fingers S, which project inward and downward and touch the center fluesome distance below its point of support, and projections T, extendinginward to the center flue, in combination with a center Iiue having lugsR2, as and for the purposes described.

7. The combination of a spider constructed with ledges R R upon itsinner circumference, fingers S, which project inward and downward andtouch the center flue some distance below its point of support, andprojections T, extending inward to the center Hue, a centeriiuehavinglugs R2, andaperforated cylinder V, as and for the purposesdescribed.

, 8. In a regenerative gas-lamp, the combination of a gas-burner cast ofa single piece of met-al, having ribs drilled through longitudinally,spaces betweenV the tubes thus formed, a spider located above theburner, supporting the central regenerative chamber, and having anannular rim U projecting downward to secure the perforated cylinder V inplace, and the perforated cylinder V, as and for the purposes described.l

9. In a regenerative lamp, the combination of a burner cast of a singlepiece of metal, having ribs drilled through longitudinally and spacesbetween the ribs thus formed, a spider located above the burner,supporting the central regenerative chamber, and having an annular rim Uprojecting downward to secure the perforated cylinder V in place. theperforated cylinder V, and a perforated cylinder W, as and for thepurposes described.

1d In combination with a regenerative lamp having a rim M projectingdownward therefrom, provided with screws P to support a de-Hector-plate, a defiector-plate N, having lugs O, provided with holesfor the reception of the smooth or cylindrical end of the screws P, asand for the purposes described.

ll. In regenerative gas-lamps, the combination of a burner, agas-chamber supportinga ICO IIO

IIS

spider, provided with projections T upon its iiue depending from saidspider, having ings inner circumference, a center iiue having R2 restingupon said ledges, as andfor the 1o lugs R2 engaging with saidprojections, as purposes described.

and for the purposes described.

l2. In a regenerative gas-lamp, the combi- THOS GORDON' nation of aburner, a gas-chamber, and spider Witnesses: D, secured to said chamber,having ledges R THEO. C. WARNER, R upon its inner circumference, acentral HOWARD E. WARNER.

